Begin by thawing any frozen corn or cooking fresh corn until tender. If using fresh corn, boil it for about 5-7 minutes until bright yellow. Once cooked, drain any excess moisture and set the corn aside to cool entirely.

In a large mixing bowl, combine the sweet corn, halved cherry tomatoes, diced cucumbers, and finely chopped red onion. Gently fold the ingredients together until well mixed.

In a separate bowl, whisk together mayonnaise, sour cream, freshly squeezed lime juice, garlic powder, chili powder, salt, and pepper. Adjust the spices to taste.

Pour the prepared dressing over the corn and vegetable mixture, gently tossing until everything is evenly coated.

Cover the bowl with plastic wrap and refrigerate for at least 30 minutes to let the flavors meld beautifully.